Thanks for the reply shootmymime!
I am looking at these specifically.
Factory Series CoilOvers - Total Automotive Performance - Your Source for Auto Parts and Accessories
It might just be their website, but they don't provide a lot of optional information, just the basics of what you are ordering. They don't provide much in the way of specs, or options to dial something in. I appreciate the information because they are not open on the weekend to field questions.
It seems like the higher end coilovers have less info about spring rates and what not overall. I noticed the same thing when I was looking at Kings. I have read that they are a progressive coil, but haven't been able to find much more besides Fox stating somewhere that they use Eibach springs.
Although, one advantage that King offers is that they offer options for the rear too if you ever get to that point. The Fox and Kings seem to be a similar price point with the Fox COs being a bit more expensive. And as far as gleaming information from other people's user experiences, it seems that it goes Icon, King, and somewhere down the road Fox concerning frequency of what I see people use. Most of the threads that I read about Fox seem to be a few years old.